`timescale 1ns / 1ns

module FlowLED_tb ();

  // clock period,20ns
  parameter CLK_PERIOD = 20;

  reg sys_clk;
  reg sys_rst_n;
  wire [1:0] led;

  always #(CLK_PERIOD / 2) sys_clk = ~sys_clk;

  initial begin
    sys_rst_n <= 1'b0;
    sys_clk   <= 1'b0;
    #200 sys_rst_n <= 1'b1;
  end

  // simulate time
  /*
initial begin
    forever begin
        #100
        if($time>=1000) $finish;
    end
end
*/

  // instance
  FlowLED u_FlowLED (
    .sys_clk(sys_clk),
    .sys_rst_n(sys_rst_n),
    .led(led)
  );

endmodule
